package com.itheima.service;

import com.itheima.pojo.Member;

import java.util.List;

/**
 * @Author:cz
 * @Date:2020/3/15
 * @Content:
 */
public interface MenberService {

    Member findByTelephone(String telephone);

    void add(Member member);

    List<Integer> findMemberCountByMonths(List<String> months);
}
